Rendering with compositor only renders single image
The error is this you are setting the offset to 116, but the start frame is set to 1, so the 14 frames you want to render would be rendered in frames 1 to 14. Otherwise you are getting a repeat of the last frame.

On a side note, it is quite unfortunate that you chose to use png as image format, by doing so you've lost a lot of the information that would help you denoise the image. In the future use EXR mulilayer and save the denoise passes.